Injectors/Pulsation Dampers, Replacing

Injectors/Pulsation Dampers, Replacing

NOTE: The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Preparatory work

Removing components
Drain the fuel system.
Remove the air cleaner (ACL) module.
Remove the hose clamp for the rubber hose on the throttle body (TB). Move the hose to one side. Disconnect the throttle body (TB) connector.

Removal

Removing upper intake manifold







Remove the 6 screws for the upper section of the intake manifold. Move the manifold to one side.

Removing the fuel rail

CAUTION: Clean up any fuel spills using paper.







Disconnect the connector for the fuel pressure sensor and the connector for the injectors. Remove the 2 fuel rail mounting screws. Spray universal oil or similar around the injector nozzle at the terminal on the intake manifold. Gently work the fuel rail and injector nozzles loose. Disconnect the fuel line to the fuel rail. Press in the two blue clips on the fuel rail. Pull the fuel line out of the fuel rail.

Removing injectors

Remove:
- the screws holding the mounting rail to the fuel rail
- the mounting rail
- the injector.

Installation

NOTE: For tightening torques, see Specifications.

Installing injectors







Lubricate the injector O-ring using a thin layer of petroleum jelly. Install the new injector.

Installing the mounting rail







Position the mounting rail. The injectors may need to be pulled away from the fuel rail a few millimeters to install the rail. Tighten the mounting rail to the fuel rail. See Specifications.

Installing the fuel rail







Lubricate the injector O-rings using petroleum jelly. Depress the fuel rail. Ensure that all injectors sit correctly.

Press the quick-release connector together until a clicking sound is heard. Screw the fuel rail into place. Connect the connector for the injectors and the fuel pressure sensor.

Installing upper intake manifold

Install:







- new gaskets for the intake manifold
- the intake manifold. Align the guides with the lower section of the intake manifold
- the screws for the intake manifold.
- the hose for the throttle body (TB). Tighten hose clamp.

Finishing

Installing the air cleaner (ACL) module
Install the air cleaner (ACL) module.

Checks
Start the engine. Check the function of the engine. Check for leakage.